question about battery maintainer

Is there anyone use the battery maintainer? The battery in my convertible will drain within one month. I saw these maintainers but not sure which one I should buy. Any suggestion?

Thanks ahead.

所有跟帖: 

Why leave your car idle for 1 month? -Kaolin007- 给 Kaolin007 发送悄悄话 (51 bytes) () 02/11/2009 postreply 09:36:15

I posted one about battery maintainer, check it out -internuts- 给 internuts 发送悄悄话 internuts 的博客首页 (64 bytes) () 02/12/2009 postreply 13:47:02

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